Keyboard with bisectional letter keys



FIG. 1 is a top, front and right side perspective view of a keyboard showing my new design;

FIG. 2 is a left side elevational view thereof;

FIG. 3 is a rear elevational view thereof on a reduced scale; and,

FIG. 4 is a bottom plan view thereof. 

The ornamental design for a keyboard with bisectional letter keys, as shown and described. 